LM61480-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Input voltage range from 3V to 36V
- RESET output with filter and delayed release
- Designed for low EMI:
- CISPR 25 class 5 compliant EVM
- Pin-configurable spread spectrum
- Adjustable SW node rise time
- Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
- Low EMI symmetrical pinout
- Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
- High-efficiency design
- 95% efficient for an 8A load
- 5µA input current while unloaded in auto mode
- < 1µA shutdown current (typical)
- High power density
- Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
- 4.5mm × 3.5mm wettable flank QFN package
- ϴJA = 21.6°C/W, measured on LM61495RPHEVM
- Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance
The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.
The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.
An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM6x4xx-Q1 Pin-Compatible, 6A, 8A, 10A, Automotive Buck Converter Optimized for Power Density and Low EMI datasheet (Rev. E) | PDF | HTML | 2025/10/7 | ||
| 功能安全資訊 | LM62460-Q1, LM61480(T)-Q1, and LM61495(T)-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) | PDF | HTML | 2024/12/12 | |||
| 應用說明 | How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck | PDF | HTML | 2023/8/16 | |||
| 應用說明 | Configuring LM62460 for Dual-Phase Operation | PDF | HTML | 2021/8/12 | |||
| 技術文章 | Lowering audible noise in automotive applications with TI’s DRSS technology | PDF | HTML | 2021/3/18 | |||
| 類比設計期刊 | The pros and cons of spread‐spectrum implementation methods in buck regulators | 2021/3/18 |
設計與開發
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SNVR498 — LM61495-Q1 Design Tool
PMP23242 — 微處理器單元 (MPU) 離散式汽車電源參考設計
此設計展示了使用低成本離散式電壓穩壓器的電源樹，並詳細介紹 AM62x-Q1 處理器系列不同電壓軌的特定通電和斷電時序要求。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPH) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。